SU1680541A1 - Rotary foundry conveyer line for die-casting large-size articles - Google Patents

Abstract

The invention relates to the processing of polymeric materials, in particular to rotary conveyor lines for the manufacture of large-sized articles by the method of injection molding. The purpose of the invention is to expand the technological capabilities of the rotary conveyor line and increase its reliability. For this, the device is equipped with a transport and technological conveyor 1, injection molds having heat exchange and runner channels, a technological rotor of heat exchange with a disk and an asterisk, placed on the shaft with sliders with spring-loaded nozzles, with the possibility of interaction with the injection mold. On the side of the casting channel of the casting mold, a clamp is placed, which elastically interacts with the disk and with the casting mold and is made in the form of interconnected spring-loaded slider and spring-loaded fifth. 4 il. (Ls

Description

The invention relates to mechanical engineering and can be used in rotor conveyor lines for the manufacture of large-scale products from polymeric thermoplastic materials by the method of injection molding.

The purpose of the invention is to expand the technological capabilities of the rotary conveyor line and increase its reliability.

FIG. 1 shows a kinematic diagram of the proposed rotor-conveyor line, top view; in fig. 2 and 3 - technological rotor heat transfer, longitudinal section; in fig. 4 - injection mold of the transport and technological conveyor, longitudinal section.

The rotor conveyor line contains a transport and technological conveyor 1 with injection molds 2, having a heat exchange channel 3 and a sprue channel 4, a technological heat exchange rotor 5 with a disk 6 and an asterisk 7 placed on the shaft 8, sliders 9 with spring-loaded nozzles 10. clip 11 with the ability to interact with the injection mold, the copier 12, in which the sliders 9 are moved. The clamp 11 is placed qo of the side of the gate channel 4 of the injection mold 2, elastically interacts with the disk 6 and the copier 13, and also has the ability to interact with the injection mold 2. The clamp 11 is made in the form of a spring-loaded slider 14 with a spring 14

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A spring-loaded spring 16 of 17. 17. A clamp 11 and a slider 9 with spring-loaded nozzles 10 are placed within the initial circumference of the process heat exchange rotor to reduce the transverse dimensions of the process heat exchange rotor and increase its reliability by reducing the bending moments on the shaft, while The axis 0 of the sprue channel 4 of the molds 2 is located.

FIG. Figure 1 shows schematically the technological rotors of heat exchange 5, the technological rotor 18 is cast under pressure, bypass sprockets 19, kinematic connected by a transport and technological conveyor 1. In FIG. 2 and 3 spring-loaded sliders 15 are placed in the housing 20 mounted on the disk 6 at the positions of the technological heat exchange rotor on which the mold forms 2 are placed, while the spring-loaded sliders 15 are interconnected with the spring-loaded fifth 17 by means of a rod 21,

Rotary conveyor line works as follows.

During the rotation of the technological rotors, the casting under pressure 18 and the heat exchange 5 moves with them the transport and technological conveyor 1 (Fig. 1) with the injection molds 2 in engagement of the chain 22 with an asterisk 7 and the injection molds 2 with the help of rods 23. Before the casting begins Under pressure in the process rotor, the mold 2 is heated to the required process temperature. To do this, on the process rotor of heat exchange 5, the half-molds 24 and 25 of the injection mold 2 are pressed by the clamp 11 with the help of copier 13, the heat-exchange channel 3 of the seal 26 is sealed and conical mating 27. After sealing the heat-exchange channel 3, spring-loaded nozzles 10 are raised through the slide hot heat exchanged medium (distilled water) is supplied. The heating of the casting molds 2 takes place on the technological rotor of heat exchange 5 when the transport-technological conveyor 1 moves, and each casting mold 2 enters the heat exchange rotor 5 many times until the set temperature is reached.

After heating the casting molds 2, the technological rotor 18 is cast under pressure, in which molten polymer thermoplastic material is fed into the casting mold 2 under pressure. Then the casting molds 2 with casting 28 are again fed to the technological

the heat exchange rotor 5, where the molds 24 and 25 of each injection mold 2 are pressed again by the clamps 11 with a copier 13, the heat exchange channel 3 is sealed by seal 26 and conical mating 27; After sealing the heat exchange channel 3, the nozzles 10 raise through the sliders 9, through which The cold heat exchange medium (distilled water) is supplied with a pressure, and the casting 28 and the sprue 29 are cooled. At the exit of the mold 2 from the heat exchange technological rotor 5, the spring 14 lifts the slider 15 with spring loaded 17 and casting 2 and form a chilled casting 28 enters the discharge rotor (not shown) in which the upper mold 24 is lifted to the casting sprue 29 and via the ejector 30 is discharged. A special ejector (not shown) is then discharged by a sprue 29,

After unloading the casting 28 and the sprue 29, the loosely closed casting mold 2 is directed to the casting process rotor under pressure 18 to repeat the cycle — casting under pressure, cooling and unloading the casting and the sprue.

The effect of using the proposed technical solution in comparison with the prototype is to expand the technological capabilities of the rotary-conveyor line by providing the possibility of making large castings while increasing productivity, as well as increasing reliability due to the absence of reciprocating movement of large-weight injection molds and reducing bending moments acting on the rotor shaft, when the transport-technological conveyor is moving 0 and the size of the technological and a heat exchange rotor rotary konveyer- hydrochloric line.

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Claims (1)

Invention Formula Rotary conveyor line for injection molding of large-sized products, including transport and technological a conveyor with injection molds having heat exchange and gating channels, a technological rotor of heat exchange with a disk and an asterisk placed on the shaft, sliders with spring-loaded nozzles, clamping, made with the possibility of interaction with the injection mold, which, in order to expand the technological capabilities of the rotary conveyor line and increase its reliability, side of the gutter channel injection mold, placed the clamp, elastically interacting with the disk with the injection mold, and made in the form of interconnected spring-loaded slider with spring-loaded fifth. ABOUT but 1  but Gpf lfrS089l Fig